3-Month Treasury Bill Secondary Market Rate, Discount Basis
TB3MSratesFree tier
| Series ID | TB3MS |
|---|---|
| Units | Percent |
| Frequency | Monthly |
| Category | rates |
| Latest observation | 2026-09-01 |
| History | Point-in-time: every value as first published plus each revision, so backtests see only what was known on the day |
Get it in Python
import finzdata as yf
df = yf.Client().macro("TB3MS")
df.tail()Or chart it live on FinzData Explore.
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